pscadegrid

绘制磁滞回线，模拟磁滞回线产生的过程，便于理论分析建模(Drawing hysteresis loops to simulate the process of hysteresis loops is convenient for theoretical analysis and modeling.)

abaqus中的双曲正弦曲线代码，可以使用，并且与abaqus中的内在本构达到了很好的一致(abaqus the hyperbolic sine curve code can be used, and with the inherent constitutive abaqus reached a good agreement)

超声兰姆波用于无损检测，求解其相速度频散曲线，群速度频散曲线(ultrasonic lamb wave)

用PSCAD做的关于电力系统三绕组变压器去故障的仿真(PSCAD simulation done with about three-winding transformer to power system faults)

说明：  该内容包括计算机图形学基本实验案列41-50的源代码，可直接运行。(This content includes the source code of 41-50, which can be run directly.)

netcdf的可视化工具包，对于直接读取netcdf数据非常便利(netcdf visualization toolkit, for direct reading netcdf data is very convenient)

基于 Maxwell 的基本电磁场理论，根据导行电磁波得到矩形导波系统中 TM 波、TE 波的场分布方程， 并对传 播常数进行讨论，得到矩形波导中传输模式特性． 应用 MATLAB 计算金属矩形波导的传输模， 得到矩形波导中 TE、TM 模场分布． 研究结论对矩形波导设计提供参考．(ased on the basic electromagnetic field theory of Maxwell, the field distribution equation of TM wave and TE wave in rectangular guided wave system is obtained based on guided electromagnetic wave. The transmission constants of the rectangular waveguide are discussed, and the transmission modes of the rectangular waveguide are calculated by MATLAB. The TE and TM in the rectangular waveguide are obtained. The results of the study provide a reference for the design of rectangular waveguides.)

系统辨识作业 考虑如下模型 z(k)-1.5z(k-1)+0.7z(k-2)=u(k-1)+0.5u(k-2)+v(k) 其中v(k)是均值为0，方差为1的白噪声。根据模型生成数据，采用递推最小二乘法对模型参数进行辨识，要求绘出各参数随时间的变化曲线。 ("System identification" computer test 。Consider the following model Z (k) to 1.5 of z (k- 1)+ 0.7 z (k- 2) = u (k- 1)+ 0.5 u (k- 2)+ v (k) The v (k) is the mean to 0, the white noise variance 1. Generate data according to the model, the recursive least squares method is adopted to model parameters are identified, draw the parameters changing with time curve. )

MFC 画出简单的坐标 并通过按钮产生随机点坐标（横坐标逐渐增大纵坐标随机）存入文件中 另一按钮实现读出数据并将点连成折线(MFC drawing simple coordinate and through the button generates random point coordinates (abscissa increases ordinate random) into a file and another button to achieve read data points connected into line)

极其简单的MFC画图小例子，但是可以学到很多的基本知识，不错的例子，微软出品！！！！(Extremely simple MFC drawing small example, but you can learn a lot of basic knowledge, a good example, Microsoft Publisher! ! ! !)